数据进入，数据出来，而且错误被送出一个不同的方向。

Data goes in, data comes out, and errors are sent in a different direction.

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经济学家们表示，官员们可能还是会等到更多的经济数据出来之后才会做出进一步决策。

Still, officials are likely to wait for more economic data before making further decisions, economists said.

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然后，每个用户有4个验证数据，在时间上比同一个用户在测试集中打分数据出来的早。

Then, each user has exactly four ratings in the validation data, which come earlier in time than the ratings by the same user in the test data.

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Right, so the fundamental idea then, is, I want to glue together information, I want to take pieces of data that naturally belong together, glue them together, and attach some methods to it.

放在一起的数据拿出来，把它们放到一起，然后把一些方法附加上去,这些，你知道的，是很长的一个定义，让我们来看个例子吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

I did it myself using my data, but it would always look more or less like this-- slightly different positions if people use different estimates.

这幅图是我根据自己的数据画出来的，有效边界的图形大致就是如此-,随着人们采用不同的估计值,其位置会发生微小的变化。

耶鲁公开课 - 金融市场课程节选